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Kinetics & Equilibrium Vocab

kinetics the study of the factors that govern how rapidly reactions occur
collision theory the rate of a reaction is proportional to the number of collisions that occur each second between the reactants
effective collision a collision in which the colliding particles approach each other at the proper angle and with the proper amount of energy
catalyst a substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process
inhibitor one that inhibits, as a substance that retards or stops a chemical reaction
enzyme any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts
activation energy the minimum kinetic energy that must be possessed by the reactants in order to give effective collision (one that produces products)
potential energy diagram a plot of the change in potential energy that occurs during a chemical reaction
transition state the moment during a reaction when the species involved have acquired the minimum amount of potential energy needed for a successful reaction
reaction rate how quickly the reactants disappear and the products form
reversible reaction a reaction in which the equilibrium constant is such that the reaction can be made to proceed at a detectable rate in either direction under appropriate conditions; results in an equilibrium mixture of reactants and products
Le Chatelier's principle when a system that is in dynamic equilibrium is subjected to a disturbance that upsets the equilibrium, the system undergoes a change that counteracts the disturbance and, if possible, restores the equilibrium
stress an applied force or system of forces that tends to shift a reaction
endothermic characterized by or causing the absorption of heat
exothermic releasing heat
Created by: allinone